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182617ee87
Fixed the UTF-8 UnicodeDecodeError which was thrown while dumping and loading the json file. Now the script ignores non-decodable characters. Fixed the ZeroDevisionError coming from t-test when the standard deviations were 0. "(N/A) Invalid t-test type" is shown for significant changes and a hint at the end if any invalid t-test was detected. Change-Id: I094763188a1f3ddf40b7140c65acf95918a6597f Reviewed-on: http://gerrit.cloudera.org:8080/18215 Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Reviewed-by: Quanlong Huang <huangquanlong@gmail.com>